Purple Cochoa (Cochoa purpurea) in Natural Size from the "Birds of Asia" series by John Gould. Published in 1850-83 hand-colored lithograph plates from drawings by Gould, Hart, Richter and Wolf. Measuring 21.625 inches x 15.000 inches. Includes full text page. Condition: minor light spotting; impurities in paper; Binding holes along right edge.